Navigational warnings on 2011-09-12

UTC day · today

issued
25
cancelled
22
in force at end
283
of these still in force
0

What this reporting period contains

25 messages have issue dates in this period, and 22 have cancellation dates in it. A cancellation can close a message issued earlier; subtracting these totals does not give a count of new incidents.

Nav aids accounts for 8 of 25 recorded messages (32%), the largest category group in this selection.

HYDROLANT accounts for 9 of 25 recorded messages (36%), the largest source series group in this selection.

Separate updates to the same activity count as separate messages. The original records below show what was reported and when.

Issued · by type

Nav aids8
Other6
Exercises3
Incidents3
Icebergs1
Cable ops1
Derelicts1
Surveys1
Quakes1

Issued · by sea

Gulf of Mexico2
Kara Sea1
Gulf of Alaska1
South Atlantic Ocean1
Black Sea1
Bismarck Sea1
Celtic Sea1
Ionian Sea1

HYDROLANT 9 · HYDROPAC 7 · NAVAREA IV 4 · NAVAREA XII 2 · HYDROARC 2 · USGS earthquakes 1

Issued · 25

Cancelled · 22

Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.

Navigational warnings on 2011-09-12 · seahazards